You’re planning. Maybe tacos. Maybe a trip. You need the number now. Good news: I’ve got it, plain and simple.

The answer, right away

Today, October 21, 2025, $1 US dollar is about $18.42 Mexican pesos. And $1 Mexican peso is about $0.054 US dollars. Rates wiggle during the day, so think “about,” not exact.

Quick swaps (MXN → USD)

Quick swaps (USD → MXN)

Why the number moves

Money is busy. Big banks trade all day. News hits. Prices shift. So your card, your bank, or an airport booth may show a slightly different number.

Smart, easy tips

• Check the rate right before you pay.
• Use a card with no extra fees if you can.
• ATMs can be fair. Skip “dynamic” conversions on the screen.
• Airport kiosks are fast, but often costly. Compare first.

Friendly taco math

If a taco costs 25 MXN, $10 USD (about 184 MXN) buys roughly 7 tacos. Yum.

One-line recap

Today’s ballpark: $1 USD ≈ 18.42 MXN, and $1 MXN ≈ $0.054 USD. Plan with that, then check once more at pay time.

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